I'd recommend reading up on fermented foods and drinks to incorporate into your daily diet. There's also: https://en.wikipedia.org/wiki/Fecal_microbiota_transp

I'd recommend reading up on fermented foods and drinks to incorporate into your daily diet. There's also: https://en.wikipedia.org/wiki/Fecal_microbiota_transplant https://en.wikipedia.org/wiki/Fecal_microbiota_transplant